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• Anomalie #4546 : image_recadre perd l’EXIF de rotation

  19 septembre 2020, par jluc -

  Le 19/07/2020, cerdic dit « 
  On pourrait envisager que conserver les exifs à travers chaque filtre image, mais c’est aussi dangereux du point de vue des données personnelles. Je verrais plutôt un filtre qui permettrait de recopier certains exifs d’une image source sur l’image finale, sur le mode :
  

  <span class="CodeRay">[(#FICHIER|image_reduire{…}|image_recadre{…}|image_copie_exif{#FICHIER,’author’})]
  
  </span>

  
  (syntaxe exacte à définir)
   »

• Why AudioSegment doesn't read 'mp3' ?

  22 octobre 2020, par freshITmeat

  I tried to read file that I give with absolute path.
When I run my code first that I see is this message :

  


  D:\prog\datascience\anaconda\lib\site-packages\pydub\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
  warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)


  


  I tried this :

  


  PATH_TO_FFMPEG = 'D:\\prog\\ffmpeg-win-2.2.2\\ffmpeg.exe'
pydub.AudioSegment.converter = r'D:\\prog\\ffmpeg-win-2.2.2\\ffmpeg.exe'


  


  And I separately installed ffmpeg with pip. But it didn't help.
When I try this :

  


  raw_sound = pydub.AudioSegment.from_mp3(file=track_path)


  


  where track_path is correct absolute path generated automatically.
So I got this this error :

  


  Traceback (most recent call last):&#xA;  File "D:\prog\PyCharm Community Edition 2020.2.2\plugins\python-ce\helpers\pydev\pydevd.py", line 1448, in _exec&#xA;    pydev_imports.execfile(file, globals, locals)  # execute the script&#xA;  File "D:\prog\PyCharm Community Edition 2020.2.2\plugins\python-ce\helpers\pydev\_pydev_imps\_pydev_execfile.py", line 18, in execfile&#xA;    exec(compile(contents&#x2B;"\n", file, &#x27;exec&#x27;), glob, loc)&#xA;  File "D:/testtask2/test_task/testtask/get_mffc.py", line 165, in <module>&#xA;    slice_all_in_a_dir(&#x27;May 27 2020 LNC/Hydrophone 1/raw_records&#x27;)&#xA;  File "D:/testtask2/test_task/testtask/get_mffc.py", line 70, in slice_all_in_a_dir&#xA;    slice_samples(track_path= [file],&#xA;  File "D:/testtask2/test_task/testtask/get_mffc.py", line 48, in slice_samples&#xA;    raw_sound = pydub.AudioSegment.from_mp3(file=track_path)&#xA;  File "D:\prog\datascience\anaconda\lib\site-packages\pydub\audio_segment.py", line 738, in from_mp3&#xA;    return cls.from_file(file, &#x27;mp3&#x27;, parameters=parameters)&#xA;  File "D:\prog\datascience\anaconda\lib\site-packages\pydub\audio_segment.py", line 680, in from_file&#xA;    stdin_data = file.read()&#xA;AttributeError: &#x27;list&#x27; object has no attribute &#x27;read&#x27;&#xA;python-BaseException&#xA;</module>

  


  Full code when I use it :

  


  def slice_samples(track_path: list, save_path: str,
                  sample_folder_name: str, interval: float, given_format, name: str = "part", export_format = 'wav'):
    """
    This metod slice given track to parts.
    :param track_path: str, a path to the track you want to slice
    :param save_path: str, a path to folder, where you want save sliced tracks
    :param sample_folder_name: str, you don't need to create a folder for sliced tracks,
    you can just write the name of the folder in this argument where you want to save tracks
    :param interval: float, measure in seconds, the length of sliced tracks
    :param name: str, name of sliced tacks
    :param given_format: str, I strongly recommend use .wav format initially, when you record sounds
    :return: folder with sliced tracks
    """

    # it cuts a file in mp3 or wav formats (wav recommended)

    interval_secs = interval * 10 ** 3
    raw_sound = None
    if given_format == "WAV":
        raw_sound = pydub.AudioSegment.from_wav(file=track_path)
    elif given_format == "MP3":
        raw_sound = pydub.AudioSegment.from_mp3(file=track_path)
    else:
        raise Exception("It's temporarily unsupported given_format: " + given_format)
    start = 0
    end = interval_secs
    i = 0
    while end < len(raw_sound):
        save_to = save_path + sample_folder_name + "/" + name + str(i)
        part = raw_sound[start:end]
        part.export(save_to, format=export_format)
        i += 1
        start += interval_secs
        end += interval_secs
    return save_path + sample_folder_name

def slice_all_in_a_dir(tracks_folder: str):
    files = os.listdir(tracks_folder)
    for file in files:
        folder_name = file.split('.')
        f_name = folder_name[0]
        file = tracks_folder+'/'+file
        file = os.path.abspath(file)
        slice_samples(track_path= [file],
                      save_path= PATH_FOR_SLICED,
                      sample_folder_name= f_name,
                      interval=5,
                      given_format=folder_name[1])

if __name__ == "__main__":
    slice_all_in_a_dir('May 27 2020 LNC/Hydrophone 1/raw_records')


  


• On Heroku I got FFMPEG::Error (Failed encoding.Errors : encoded file is invalid. Full output : )

  8 octobre 2020, par Ruslan Valeev

  The code is :

  


  tempfile = Tempfile.open('content')
tempfile.write(content)
movie = FFMPEG::Movie.new(tempfile.path)
screenshot_temp_file = Tempfile.open('screenshot')
movie.screenshot(screenshot_temp_file.path)


  


  everything works fine locally, but when I try this on Heroku I got error at last row :

  


  irb(main):013:0> movie.screenshot(screenshot_temp_file.path)&#xA;I, [2020-10-07T15:48:27.132114 #7]  INFO -- : Running transcoding...&#xA;["/app/vendor/ffmpeg/ffmpeg", "-y", "-i", "/tmp/content20201007-7-1g1955b", "-vframes", "1", "-f", "image2", "/tmp/screenshot20201007-7-1mmts7s"]&#xA;&#xA;E, [2020-10-07T15:48:27.190572 #7] ERROR -- : Failed encoding...&#xA;["/app/vendor/ffmpeg/ffmpeg", "-y", "-i", "/tmp/content20201007-7-1g1955b", "-vframes", "1", "-f", "image2", "/tmp/screenshot20201007-7-1mmts7s"]&#xA;&#xA;&#xA;Errors: encoded file is invalid. &#xA;&#xA;Traceback (most recent call last):&#xA;        7: from /app/bin/irb:30:in `<main>&#x27;&#xA;        6: from /app/bin/irb:30:in `load&#x27;&#xA;        5: from /app/vendor/ruby-2.6.6/lib/ruby/gems/2.6.0/gems/irb-1.0.0/exe/irb:11:in `<top>&#x27;&#xA;        4: from (irb):13&#xA;        3: from /app/vendor/bundle/ruby/2.6.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/movie.rb:204:in `screenshot&#x27;&#xA;        2: from /app/vendor/bundle/ruby/2.6.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/transcoder.rb:45:in `run&#x27;&#xA;        1: from /app/vendor/bundle/ruby/2.6.0/gems/streamio-ffmpeg-3.0.2/lib/ffmpeg/transcoder.rb:112:in `validate_output_file&#x27;&#xA;FFMPEG::Error (Failed encoding.Errors: encoded file is invalid. Full output: )&#xA;</top></main>

  


  I've try to pass some options, like :seek_time and validate: false but nothing changed. What am I doing wrong ? Thank you so much !

  


  EDIT :
After Full output: ) there is nothing.
I've install FFMPEG buildpack on Heroku, and can see it in ui :